package com.cmeduSystem.webadmin.app.service.impl;

import cn.hutool.core.collection.CollUtil;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.cmeduSystem.webadmin.app.service.*;
import com.cmeduSystem.webadmin.app.dao.*;
import com.cmeduSystem.webadmin.app.model.*;
import com.cmeduSystem.common.core.base.dao.BaseDaoMapper;
import com.cmeduSystem.common.core.constant.GlobalDeletedFlag;
import com.cmeduSystem.common.core.object.TokenData;
import com.cmeduSystem.common.core.object.MyRelationParam;
import com.cmeduSystem.common.core.object.CallResult;
import com.cmeduSystem.common.core.base.service.BaseService;
import com.cmeduSystem.common.sequence.wrapper.IdGeneratorWrapper;
import com.github.pagehelper.Page;
import lombok.extern.slf4j.Slf4j;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.*;

/**
 * 教育字典主表数据操作服务类。
 *
 * @author xulei
 * @date 2025-09-04
 */
@Slf4j
@Service("globalDictCmeduService")
public class GlobalDictCmeduServiceImpl extends BaseService<GlobalDictCmedu, Long> implements GlobalDictCmeduService {

    @Autowired
    private IdGeneratorWrapper idGenerator;
    @Autowired
    private GlobalDictCmeduMapper globalDictCmeduMapper;
    @Autowired
    private GlobalDictItemCmeduService globalDictItemCmeduService;

    /**
     * 返回当前Service的主表Mapper对象。
     *
     * @return 主表Mapper对象。
     */
    @Override
    protected BaseDaoMapper<GlobalDictCmedu> mapper() {
        return globalDictCmeduMapper;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public GlobalDictCmedu saveNew(GlobalDictCmedu globalDictCmedu) {
        globalDictCmeduMapper.insert(this.buildDefaultValue(globalDictCmedu));
        return globalDictCmedu;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveNewBatch(List<GlobalDictCmedu> globalDictCmeduList) {
        if (CollUtil.isNotEmpty(globalDictCmeduList)) {
            globalDictCmeduList.forEach(this::buildDefaultValue);
            globalDictCmeduMapper.insertList(globalDictCmeduList);
        }
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public boolean update(GlobalDictCmedu globalDictCmedu, GlobalDictCmedu originalGlobalDictCmedu) {
        globalDictCmedu.setCreateUserId(originalGlobalDictCmedu.getCreateUserId());
        globalDictCmedu.setUpdateUserId(TokenData.takeFromRequest().getUserId());
        globalDictCmedu.setCreateTime(originalGlobalDictCmedu.getCreateTime());
        globalDictCmedu.setUpdateTime(new Date());
        // 这里重点提示，在执行主表数据更新之前，如果有哪些字段不支持修改操作，请用原有数据对象字段替换当前数据字段。
        UpdateWrapper<GlobalDictCmedu> uw = this.createUpdateQueryForNullValue(globalDictCmedu, globalDictCmedu.getDictId());
        return globalDictCmeduMapper.update(globalDictCmedu, uw) == 1;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public boolean remove(Long dictId) {
        return globalDictCmeduMapper.deleteById(dictId) == 1;
    }

    @Override
    public List<GlobalDictCmedu> getGlobalDictCmeduList(GlobalDictCmedu filter, String orderBy) {
        return globalDictCmeduMapper.getGlobalDictCmeduList(filter, orderBy);
    }

    @Override
    public List<GlobalDictCmedu> getGlobalDictCmeduListWithRelation(GlobalDictCmedu filter, GlobalDictItemCmedu globalDictItemCmeduFilter, String orderBy) {
        List<GlobalDictCmedu> resultList =
                globalDictCmeduMapper.getGlobalDictCmeduListEx(filter, globalDictItemCmeduFilter, orderBy);
        // 在缺省生成的代码中，如果查询结果resultList不是Page对象，说明没有分页，那么就很可能是数据导出接口调用了当前方法。
        // 为了避免一次性的大量数据关联，规避因此而造成的系统运行性能冲击，这里手动进行了分批次读取，开发者可按需修改该值。
        int batchSize = resultList instanceof Page ? 0 : 1000;
        this.buildRelationForDataList(resultList, MyRelationParam.normal(), batchSize);
        return resultList;
    }

    @Override
    public CallResult verifyRelatedDataBeforeDelete(GlobalDictCmedu globalDictCmedu) {
        GlobalDictItemCmedu globalDictItemCmedu = new GlobalDictItemCmedu();
        globalDictItemCmedu.setDictCode(globalDictCmedu.getDictCode());
        if (globalDictItemCmeduService.getCountByFilter(globalDictItemCmedu) > 0) {
            // NOTE: 可以根据需求修改下面方括号中的提示信息。
            return CallResult.error("数据验证失败，[GlobalDictItemCmedu] 存在关联数据！");
        }
        return CallResult.ok();
    }

    private GlobalDictCmedu buildDefaultValue(GlobalDictCmedu globalDictCmedu) {
        if (globalDictCmedu.getDictId() == null) {
            globalDictCmedu.setDictId(idGenerator.nextLongId());
        }
        TokenData tokenData = TokenData.takeFromRequest();
        globalDictCmedu.setCreateUserId(tokenData.getUserId());
        globalDictCmedu.setUpdateUserId(tokenData.getUserId());
        Date now = new Date();
        globalDictCmedu.setCreateTime(now);
        globalDictCmedu.setUpdateTime(now);
        globalDictCmedu.setDeletedFlag(GlobalDeletedFlag.NORMAL);
        return globalDictCmedu;
    }
}
